# This file is licensed under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

"""An example WORKSPACE for configuring LLVM using http_archive."""

workspace(name = "http_archive_example")

load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

SKYLIB_VERSION = "1.0.3"

http_archive(
    name = "bazel_skylib",
    sha256 = "97e70364e9249702246c0e9444bccdc4b847bed1eb03c5a3ece4f83dfe6abc44",
    urls = [
        "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/{version}/bazel-skylib-{version}.tar.gz".format(version=SKYLIB_VERSION),
        "https://github.com/bazelbuild/bazel-skylib/releases/download/{version}/bazel-skylib-{version}.tar.gz".format(version=SKYLIB_VERSION),
    ],
)

# Replace with the LLVM commit you want to use.
LLVM_COMMIT = "09ac97ce350316b95b8cddb796d52f71b6f68296"

# The easiest way to calculate this for a new commit is to set it to empty and
# then run a bazel build and it will report the digest necessary to cache the
# archive and make the build reproducible.
LLVM_SHA256 = "2fb1aa06d12f8db349a27426cb0ced062987c5c2a75143c69f4284929e2750ff"

# FIXME: It shouldn't be necessary to use http_archive twice here. Caching
# should mean that this isn't too expensive though.

http_archive(
    name = "llvm-project-raw",
    build_file_content = "#empty",
    sha256 = LLVM_SHA256,
    strip_prefix = "llvm-project-" + LLVM_COMMIT,
    urls = ["https://github.com/llvm/llvm-project/archive/{commit}.tar.gz".format(commit = LLVM_COMMIT)],
)

http_archive(
    name = "llvm-bazel",
    sha256 = LLVM_SHA256,
    strip_prefix = "llvm-project-{}/utils/bazel".format(LLVM_COMMIT),
    urls = ["https://github.com/llvm/llvm-project/archive/{commit}.tar.gz".format(commit = LLVM_COMMIT)],
)

load("@llvm-bazel//:configure.bzl", "llvm_configure", "llvm_disable_optional_support_deps")

llvm_configure(
    name = "llvm-project",
    src_path = ".",
    src_workspace = "@llvm-project-raw//:WORKSPACE",
)

# Disables optional dependencies for Support like zlib and terminfo. You may
# instead want to configure them using the macros in the corresponding bzl
# files.
llvm_disable_optional_support_deps()
